Comments on: How can I tell if my exchange server 2003 is being spoofed?

By: swoodsides

swoodsides — Fri, 30 Jul 2010 17:26:02 +0000

Thank you, Technochic. I looked over the link you sent and I went over it thoroughly and found two minor adjustments that had been changed from the defualt setting. I am going to sit here and watch for a while and see what happens and will update you.
Thank you,
Scott

By: technochic

technochic — Fri, 30 Jul 2010 16:09:32 +0000

Check to make sure you do not have an open relay on your exchange servers. Outside of that it is difficult to completely stop spoofing. Here is an article that may be helpful.

By: swoodsides

swoodsides — Thu, 29 Jul 2010 20:21:55 +0000

Okay, this I understand. So, how do I stop it? I am getting emails sent all day long and everything that I check in my exchange server looks good.

By: schmidtw

schmidtw — Thu, 29 Jul 2010 19:55:46 +0000

You can tell by getting an e-mail filtering or proxy service. If either of those put up flags, you probably have a problem on your hands.

Hope this helps!

-Schmidtw

By: aguacer0

aguacer0 — Thu, 29 Jul 2010 19:33:59 +0000

Technochic is correct. E-mail addresses gets forged. You just want to confirm you are not being “relay” which will eventually add you to a blacklist. A blacklist is basically a list of IP addresses of where SPAM probably originates from. If you are on any of these lists, certain domains will classify you as SPAM if they happen to utilize a blacklist that you are listed on.